NA-65H Nucleating Agent for Polypropylene — High-Stiffness Alpha Nucleator

NA-65H is a stiffness-enhancing alpha nucleating agent for polypropylene, manufactured by BASTONE at its Hangzhou production facility.
The additive induces oriented crystallization in PP, refining crystal size and narrowing size distribution to raise flexural modulus, heat resistance, and crystallization rate.
Compounders use it in extrusion, injection molding, and compression molding for appliance housings, automotive modified PP, electrical components, and closures.

Description

NA-65H is a powdered organic nucleating agent designed for polypropylene homopolymer and copolymer systems. Rather than acting as a clarifier, NA-65H works as a rigidity-type alpha nucleator: it seeds crystal formation during cooling so that the polymer forms a larger population of smaller, more uniformly sized spherulites. Crystal refinement is the mechanism behind every downstream property gain the additive delivers.

The performance data from BASTONE's own comparative testing shows what the refinement buys. At 0.1% loading, NA-65H lifts flexural modulus into the 1900+ MPa range and flexural strength above 50 MPa, matching or exceeding imported NA-11 tested at the same loading in the same PP matrix. Crystallization temperature (Tc) rises above 128 °C at 0.1% NA-65H, again ahead of the imported reference at 128 °C or below.

A higher Tc matters on the molding floor more than it matters in the lab. When PP begins crystallizing at a higher temperature, the part sets up earlier in the cooling phase, which shortens cycle time and lifts throughput on injection presses and extrusion pelletizing lines alike. Molders running high-cavitation tools for caps and closures feel the effect immediately in parts per hour.

The stiffness and heat-resistance gains open the second set of applications. Higher flexural modulus and higher heat distortion temperature let compounders hold part performance while thinning wall sections or reducing filler loading — useful in automotive modified PP and in appliance parts that see sustained thermal load. NA-65H also improves transparency and surface gloss, and it does not migrate or bloom to the surface, which supports food-contact applications.

BASTONE manufactures NA-65H in-house at its Hangzhou Economic Development Zone facility using its own formulation and process. Production sits inside an R&D-oriented chemical group with 4 production sites and 1 R&D center, so batch-to-batch consistency is controlled at the source rather than verified after purchase. BASTONE's laboratory runs the same flexural and DSC crystallization testing shown above on production material, and buyers receive the results with each shipment.

Factory and Activities

NA-65H Nucleating Agent for Polypropylene — High-Stiffness Alpha Nucleator - BASTONE Petrochem

Specifications

NA-65H fine white nucleating agent powder shown with polypropylene resin pellets in studio macro
NA-65H fine white nucleating agent powder shown with polypropylene resin pellets in studio macro

General Information

Parameter Value
Product Name NA-65H
Product Type Polyolefin nucleating agent (alpha, stiffness-enhancing)
Target Polymer Polypropylene (homopolymer and copolymer)
Manufacturer Zhejiang Bastone Technology Co., Ltd
Production Site Hangzhou Economic Development Zone, China
Physical Form Powder
Food Contact Non-migrating; suitable for food-contact applications

Technical Properties

Comparative performance in polypropylene, NA-65H versus imported NA-11, both at 0.1% loading:

Property Unit 0.1% NA-65H 0.1% Imported NA-11
Flexural Modulus MPa ~1,900–1,950 ~1,750–1,800
Flexural Strength MPa ~50–51 ~46–47
Crystallization Temperature (Tc) °C ~128.5 ~127

Values reflect BASTONE comparative test data on a single PP matrix at matched loading. Performance in a specific resin depends on base polymer grade, MFR, and compounding conditions — request a trial evaluation for your own formulation.

Recommended Processing Conditions

Parameter Recommendation
Addition Level 0.05%–0.30% by weight (adjust to application requirements)
Mixing Method High-speed blending with PP powder or pellets before extruder feeding
Dispersion Aid Small addition of white mineral oil during high-speed mixing to bind powder to resin
Alternative Addition Prepare as a high-concentration masterbatch, then dilute to target loading
Extrusion Equipment Twin-screw extruder, or single-screw with high-intensity mixing capability
Extrusion Temperature Standard PP processing parameters — no significant adjustment required
Processing Methods Extrusion, injection molding, compression molding

Dispersion quality drives nucleation efficiency. Uneven feeding or poor distribution costs mechanical performance, which is why BASTONE recommends twin-screw compounding or masterbatch dilution over direct dry blending into low-shear equipment.

Applications

Technician dosing nucleating agent into a twin-screw extruder feed hopper during PP compounding
Technician dosing nucleating agent into a twin-screw extruder feed hopper during PP compounding

Washing machines and small appliances. Appliance structural parts carry load and sit near heat sources. The flexural modulus increase from NA-65H lets molders hold rigidity in drum surrounds, housings, and internal brackets, while the higher heat distortion temperature keeps parts dimensionally stable through wash and dry cycles.

Automotive modified polypropylene. Compounders formulating PP for interior trim, under-hood components, and structural parts use NA-65H to raise stiffness without additional mineral filler. Holding modulus while reducing filler content keeps part weight down and preserves impact performance — the stiffness/toughness balance NA-65H is built around.

Electrical and electronic components. Housings, connectors, and enclosures need dimensional stability at elevated service temperature and a clean surface finish. Higher Tc improves molded-in dimensional consistency, and the gloss improvement removes a secondary finishing step on visible parts.

Plastic bottle caps and closures. Closure molding runs high-cavitation tools where cycle time governs plant economics. Accelerated crystallization lets the part eject sooner, and the non-migrating character of NA-65H supports beverage and food packaging closures where extractables are regulated.

General consumer plastics. Housewares, containers, and everyday molded goods benefit from the combined package — faster cycles, better stiffness, improved transparency and gloss at loadings as low as 0.05%.

Why Choose BASTONE

QC analyst verifying batch certificate of analysis beside palletized additive sacks in export warehouse
QC analyst verifying batch certificate of analysis beside palletized additive sacks in export warehouse

BASTONE manufactures NA-65H, rather than reselling it. Production runs at BASTONE's own Hangzhou Economic Development Zone facility under BASTONE's proprietary formulation, which means the specification you qualify is the specification BASTONE controls — raw material selection, reaction conditions, particle sizing, and release testing all sit inside one organization.

Technical depth comes from the group structure. BASTONE operates 4 production sites and 1 R&D center, staffed by chemists who develop additive formulations rather than simply repackaging them. When a customer's PP grade responds differently than expected, BASTONE's lab can run the DSC and flexural work to diagnose it and adjust loading recommendations — support a trading house cannot provide.

Buying direct from the producer removes the distributor margin from the landed cost, and BASTONE quotes export pricing at the factory level. The export platform Zhejiang Bastone Technology Co., Ltd handles trade terms, documentation, and shipping coordination, with 10+ years of export experience behind the paperwork. BASTONE Petrochem's broader portfolio — organic and inorganic chemicals, polymers, fuel additives, drilling chemicals — lets compounders consolidate multiple additive and raw material lines under one supplier and one set of shipping documents.

Sourcing & Logistics

NA-65H polypropylene nucleating agent — catalog product photo
NA-65H polypropylene nucleating agent — catalog product photo
Item Detail
Supply Origin Manufactured by BASTONE, Hangzhou Economic Development Zone, China
Export Entity Zhejiang Bastone Technology Co., Ltd
Product Form Powder
Packaging Standard export packaging; carton, drum, and bag options — confirm at order
Documentation COA, SDS, and standard export documentation with each shipment
Trade Terms FOB, CIF, CFR, and other terms available; port of loading confirmed at order
Sample Availability Trial samples available for formulation evaluation on request
Storage & Handling Follow good industrial practice; keep dry, protect from dust and fire. Refer to the SDS for full handling guidance.

Contact BASTONE Petrochem for current pricing, lead times, and a trial quantity matched to your PP grade and loading target.

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